Inventor · disambiguated record

John D. Laessig

Also filed as: LAESSIG JOHN D

2 granted patents·57 citations·filing 1975–1988

65Inventor score

Technology areasG01N H04R

Files withBIDDLE JR ERNEST L1 COLUMBIA RESEARCH LAB INC1

Top patents by PatentIndex Score

2 records

0164US4945490ABrinell hardness indicator with digital readoutBIDDLE JR ERNEST L·Filed 1988·Granted Jul 31, 1990·34 cites·22 claims
0252US4017797AHeadset for receiving and transmitting signalsCOLUMBIA RESEARCH LAB INC·Filed 1975·Granted Apr 12, 1977·23 cites·6 claims

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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →